Toph-Sofdor Ali's Magical Blackboard!

#include<stdio.h>

int main()
{
    int t,i,d;
    long long int count,a,b;

    scanf("%d",&t);

    for(i=1;i<=t;i++)

    {
        count =0;
        scanf("%lld %lld",&a,&b);

        for(d=1;d<=b;d++)
        {
            count+=a;
        }
        printf("%lld\n",count);

    }
    return 0;
}